• MESO: Mesoscale Discussion 0133

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wednesday, March 04, 2026 21:01:48
    ACUS11 KWNS 042101
    SWOMCD
    SPC MCD 042101=20
    TXZ000-OKZ000-050000-

    Mesoscale Discussion 0133
    NWS Storm Prediction Center Norman OK
    0301 PM CST Wed Mar 04 2026

    Areas affected...Parts of north/northeast Texas into southeastern
    Oklahoma

    Concerning...Severe potential...Watch possible=20

    Valid 042101Z - 050000Z

    Probability of Watch Issuance...40 percent

    SUMMARY...A few severe storms are possible this afternoon into the
    evening, with the primary concerns being damaging gusts and severe
    hail. A watch may eventually be needed.

    DISCUSSION...The latest visible satellite imagery shows continued
    diurnal heating/destabilization of a relatively moist air mass
    (middle/upper 60s dewpoints) extending from parts of north/northeast
    TX toward the Red River. Despite weak large-scale forcing for
    ascent, continued erosion of inhibition at the base of the EML (see
    latest DAL ACARS soundings) is promoting isolated convective
    initiation within zones of differential heating and low-level
    confluence. Current thinking is that this trend will continue
    through the afternoon, with mainly isolated storm coverage. While
    modest deep-layer shear (25-30-kt midlevel flow per FWS VWP) and the
    weak large-scale ascent may limit storm organization in the
    near-term, the destabilizing boundary layer and steep midlevel lapse
    rates may still promote locally damaging gusts and sporadic severe
    hail on an isolated basis this afternoon.

    With time, a strengthening southerly low-level jet should favor
    additional storm development and organization later this afternoon
    into the evening, when the risk of damaging winds and severe hail
    should increase. A watch may eventually be needed for parts of the
    area, though timing is uncertain.

    ..Weinman/Guyer.. 03/04/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7LPapxfPNGKWQaApnMDxSqyQQOz4Yo6rRdBMpnQAzMSvFy8KaLEd3VajKGr_O3CQR9EjAWf25= Z3isrgJf6mJU13jcQo$ for graphic product...

    ATTN...WFO...SHV...TSA...FWD...OUN...

    LAT...LON 32359798 33259762 33959714 34289680 34469634 34479578
    34309540 33969519 33369515 32439545 31559595 31239658
    31239726 31469771 31829799 32359798=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN


    =3D =3D =3D
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    * Origin: Capitol City Online (1:2320/105)